Gear ring ER9P is manufactured according to drawing 22.214.171.124 zap. and has the following characteristics:
-stainless steel 45HN GOST 4543-71,
-outer diameter – 751.20 mm,
-teeth amount – 73,
-weight – 110 kg.
“Haivoron Diesel Locomotive Repair Plant” PJSC produces gear rings of electric trains ER9P, ER2 with high-quality stampings of alloy steels.
Gear rings are mounted on electric train ER9P during repair, as well as with the new formation of wheel pairs.
Gear ring ER9P is subjected to hardening of the involute-tooth profileby the HFC unit with the subsequent grinding.